NGUYEN, L. C.; HO, M. C.; LE, T.-H. A New Approach to Estimate the Complex Relative Permittivity of Materials Based on Free-Space Reflection Method. Advanced Electromagnetics, [S. l.], v. 9, n. 2, p. 19–24, 2020. DOI: 10.7716/aem.v9i2.1408. Disponível em: https://aemjournal.org/index.php/AEM/article/view/1408. Acesso em: 13 dec. 2025.